Right after Shrek and Princess Fiona's honeymoon, the newly wed couple goes to Princess Fiona's parents for dinner. When a Fairy Godmother discovers Fiona and Shrek are married she reminds the king about a deal they agreed on years ago, that Fiona should have married her son, who happens to be Prince Charming. The King then hires a cat named Puss-in-Boots, a sword fighting cat and ogre slayer, to kill Shrek.

Governments and scientists race to unravel the mystery behind a visitor's appearance. Dr. Helen Benson is a renowned scientist who finds herself face-to-face with an alien called Klaatu. Klaatu has traveled across the universe to warn of an impending global crisis. She quickly discovers the deadly ramificications of Klaatu's claim that he is a 'friend to the Earth.' Now, she and her yourng stepson must find a way to convince the entity who was sent...